[NaCl SDK] nacl_io: big refactor to return error value (errno).

native_client_sdk/src/libraries/nacl_io_test/mount_html5fs_test.cc

Index: native_client_sdk/src/libraries/nacl_io_test/mount_html5fs_test.cc
diff --git a/native_client_sdk/src/libraries/nacl_io_test/mount_html5fs_test.cc b/native_client_sdk/src/libraries/nacl_io_test/mount_html5fs_test.cc
index ce3ab2d3c9bccc4466849eae4e55ba7f9955f1c1..25ef087482a430613d1019bccdbee4db39d13ff4 100644
--- a/native_client_sdk/src/libraries/nacl_io_test/mount_html5fs_test.cc
+++ b/native_client_sdk/src/libraries/nacl_io_test/mount_html5fs_test.cc
@@ -155,7 +155,7 @@ void MountHtml5FsNodeTest::InitFilesystem() {
 }
 
 void MountHtml5FsNodeTest::InitNode() {
-  node_ = mnt_->Open(Path(path_), O_CREAT | O_RDWR);
+  ASSERT_EQ(0, mnt_->Open(Path(path_), O_CREAT | O_RDWR, &node_));
   ASSERT_NE((MountNode*)NULL, node_);
 }
 
@@ -350,7 +350,8 @@ TEST_F(MountHtml5FsNodeSyncTest, Write) {
   EXPECT_CALL(*fileio_, Write(fileio_resource_, offset, &buffer[0], count, _))
       .WillOnce(Return(count));
 
-  int result = node_->Write(offset, &buffer, count);
+  int result = 0;
+  EXPECT_EQ(0, node_->Write(offset, &buffer, count, &result));
   EXPECT_EQ(count, result);
 }
 
@@ -362,7 +363,8 @@ TEST_F(MountHtml5FsNodeSyncTest, Read) {
   EXPECT_CALL(*fileio_, Read(fileio_resource_, offset, &buffer[0], count, _))
       .WillOnce(Return(count));
 
-  int result = node_->Read(offset, &buffer, count);
+  int result = 0;
+  EXPECT_EQ(0, node_->Read(offset, &buffer, count, &result));
   EXPECT_EQ(count, result);
 }
 
@@ -441,7 +443,8 @@ TEST_F(MountHtml5FsNodeSyncTest, GetDents) {
 
   struct dirent dirents[2];
   memset(&dirents[0], 0, sizeof(dirents));
-  int result = node_->GetDents(0, &dirents[0], sizeof(dirent) * 2);
+  int result = 0;
+  EXPECT_EQ(0, node_->GetDents(0, &dirents[0], sizeof(dirent) * 2, &result));
 
   EXPECT_EQ(0, result);
   EXPECT_STREQ(&fileref_name_cstr_1[0], &dirents[0].d_name[0]);